基于生理学上的药理动力学 (PBPK) 建模的进展及其监管实用性,以支持口服药物产品的开发和协调
Yi-Hsien Cheng1, Sherin Thomas1, Yu Chung Tsang2
1Office of Research and Standards (ORS), Office of Generic Drugs (OGD), Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration (FDA), Silver Spring, Maryland, USA.
基于生理学上的药理动力学 (PBPK) 建模促进了口服药物开发,但在以患者为中心的标准和局部生物可用性验证方面面临挑战. 全球合作是监管协调的关键.
科学领域:
- 药理动力学和药物新陈代谢
- 监管科学 监管科学
- 制药发展 制药发展
背景情况:
- 基于生理学的药理动力学 (PBPK) 建模在口服药物产品开发中显示出前景,特别是在仿制药方面.
- 取得了重大进展,但在创建以患者为中心的溶解标准和验证局部作用胃肠道药物的模型方面仍然存在挑战.
研究的目的:
- 总结口服药品PBPK吸收建模中的关键发展,挑战和解决方案.
- 通过使用PBPK模型,探索在仿制药开发中加强全球协调.
- 讨论以患者为中心的溶解标准和当地生物可用性验证的策略.
主要方法:
- 从FDA和CRCG研讨会对PBPK建模的程序的审查.
- 讨论应用PBPK模型用于系统和局部口服药物作用的案例研究和挑战.
- 探索方法,比如将溶解研究和证据总体结合起来.
主要成果:
- 在仿制药开发中,PBPK模型越来越多地被使用,但考虑到食物影响和疾病状态的以患者为中心的标准仍然很难建立.
- 开发以患者为中心的溶解规范可以通过将各种pH范围的溶解研究结合起来来帮助.
- 由于缺乏局部度数据,对肠道作用药物的局部生物可用性验证PBPK模型受到阻碍.
结论:
- 虽然PBPK建模具有显著的实用性,但以患者为中心的标准和本地生物可用性验证方面的挑战需要进一步的研究和数据.
- 建议采用总体证据方法,将PBPK建模与其他数据相结合,用于监管决策.
- 加强全球合作和知识共享对于推动PBPK模型的监管应用和实现国际协调至关重要.
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